A good way to keep tabs on everyone at work.
It's the high quality rear view mirror for your computer monitor. Mount it on the top corner of your monitor with the included velcro and, Voila! you have eyes in the back of your head. Nobody can sneak up and scare you. The boss has a harder time catching you playing solitaire.
Every wonder what your coworkers are doing behind your back? Set up a rearview mirror and see for yourself!